5 files changed, 176 insertions, 21 deletions

diff --git a/OpenSim/Region/Framework/Scenes/Scene.cs b/OpenSim/Region/Framework/Scenes/Scene.cs
index 4fa4a7c..56bdc63 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.cs
@@ -3862,21 +3862,30 @@ namespace OpenSim.Region.Framework.Scenes
                     // In the case where, for example, an A B C D region layout, an avatar may
                     // teleport from A -> D, but then -> C before A has asked B to close its old child agent.  When C
                     // renews the lease on the child agent at B, we must make sure that the close from A does not succeed.
-                    if (!acd.ChildrenCapSeeds.ContainsKey(RegionInfo.RegionHandle))
-                    {
-                        m_log.DebugFormat(
-                            "[SCENE]: Setting DoNotCloseAfterTeleport for child scene presence {0} in {1} because source will attempt close.", 
-                            sp.Name, Name);
+                    //
+                    // XXX: In the end, this should not be necessary if child agents are closed without delay on 
+                    // teleport, since realistically, the close request should always be processed before any other
+                    // region tried to re-establish a child agent.  This is much simpler since the logic below is 
+                    // vulnerable to an issue when a viewer quits a region without sending a proper logout but then
+                    // re-establishes the connection on a relogin.  This could wrongly set the DoNotCloseAfterTeleport
+                    // flag when no teleport had taken place (and hence no close was going to come).
+//                    if (!acd.ChildrenCapSeeds.ContainsKey(RegionInfo.RegionHandle))
+//                    {
+//                        m_log.DebugFormat(
+//                            "[SCENE]: Setting DoNotCloseAfterTeleport for child scene presence {0} in {1} because source will attempt close.", 
+//                            sp.Name, Name);
+//
+//                        sp.DoNotCloseAfterTeleport = true;
+//                    }
+//                    else if (EntityTransferModule.IsInTransit(sp.UUID))
 
-                        sp.DoNotCloseAfterTeleport = true;
-                    }
-                    else if (EntityTransferModule.IsInTransit(sp.UUID))
+                    if (EntityTransferModule.IsInTransit(sp.UUID))
                     {
+                        sp.DoNotCloseAfterTeleport = true;
+
                         m_log.DebugFormat(
-                            "[SCENE]: Setting DoNotCloseAfterTeleport for child scene presence {0} in {1} because this region will attempt previous end-of-teleport close.", 
+                            "[SCENE]: Set DoNotCloseAfterTeleport for child scene presence {0} in {1} because this region will attempt end-of-teleport close from a previous close.", 
                             sp.Name, Name);
-
-                        sp.DoNotCloseAfterTeleport = true;
                     }
                 }
             }
diff --git a/OpenSim/Region/Framework/Scenes/ScenePresence.cs b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
index 5301a82..3f4979e 100644
--- a/OpenSim/Region/Framework/Scenes/ScenePresence.cs
+++ b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
@@ -223,7 +223,7 @@ namespace OpenSim.Region.Framework.Scenes
         private float m_sitAvatarHeight = 2.0f;
 
         private Vector3 m_lastChildAgentUpdatePosition;
-        private Vector3 m_lastChildAgentUpdateCamPosition;
+//        private Vector3 m_lastChildAgentUpdateCamPosition;
 
         private const int LAND_VELOCITYMAG_MAX = 12;
 
@@ -2108,8 +2108,7 @@ namespace OpenSim.Region.Framework.Scenes
             if (m_movementUpdateCount < 1)
                 m_movementUpdateCount = 1;
 
-
-            AgentManager.ControlFlags flags = (AgentManager.ControlFlags)agentData.ControlFlags;
+//            AgentManager.ControlFlags flags = (AgentManager.ControlFlags)agentData.ControlFlags;
 
             // Camera location in world.  We'll need to raytrace
             // from this location from time to time.
@@ -3241,7 +3240,7 @@ namespace OpenSim.Region.Framework.Scenes
             if (Util.GetDistanceTo(AbsolutePosition, m_lastChildAgentUpdatePosition) >= Scene.ChildReprioritizationDistance)
             {
                 m_lastChildAgentUpdatePosition = AbsolutePosition;
-                m_lastChildAgentUpdateCamPosition = CameraPosition;
+//                m_lastChildAgentUpdateCamPosition = CameraPosition;
 
                 ChildAgentDataUpdate cadu = new ChildAgentDataUpdate();
                 cadu.ActiveGroupID = UUID.Zero.Guid;
diff --git a/OpenSim/Region/Framework/Scenes/Tests/SceneObjectDeRezTests.cs b/OpenSim/Region/Framework/Scenes/Tests/SceneObjectDeRezTests.cs
index d670dad..5b5fb92 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/SceneObjectDeRezTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/SceneObjectDeRezTests.cs
@@ -147,7 +147,7 @@ namespace OpenSim.Region.Framework.Scenes.Tests
             AgentCircuitData acd = SceneHelpers.GenerateAgentData(uaB);
             TestClient clientB = new TestClient(acd, sceneB);
             List<TestClient> childClientsB = new List<TestClient>();
-            EntityTransferHelpers.SetUpInformClientOfNeighbour(clientB, childClientsB);
+            EntityTransferHelpers.SetupInformClientOfNeighbourTriggersNeighbourClientCreate(clientB, childClientsB);
 
             SceneHelpers.AddScenePresence(sceneB, clientB, acd);
 
diff --git a/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceCrossingTests.cs b/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceCrossingTests.cs
index 5df9aba..12a778b 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceCrossingTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceCrossingTests.cs
@@ -97,7 +97,7 @@ namespace OpenSim.Region.Framework.Scenes.Tests
             AgentCircuitData acd = SceneHelpers.GenerateAgentData(userId);
             TestClient tc = new TestClient(acd, sceneA);
             List<TestClient> destinationTestClients = new List<TestClient>();
-            EntityTransferHelpers.SetUpInformClientOfNeighbour(tc, destinationTestClients);
+            EntityTransferHelpers.SetupInformClientOfNeighbourTriggersNeighbourClientCreate(tc, destinationTestClients);
 
             ScenePresence originalSp = SceneHelpers.AddScenePresence(sceneA, tc, acd);
             originalSp.AbsolutePosition = new Vector3(128, 32, 10);
diff --git a/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceTeleportTests.cs b/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceTeleportTests.cs
index afd2779..8c25dbc 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceTeleportTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceTeleportTests.cs
@@ -30,6 +30,7 @@ using System.Collections.Generic;
 using System.IO;
 using System.Net;
 using System.Text;
+using System.Threading;
 using Nini.Config;
 using NUnit.Framework;
 using OpenMetaverse;
@@ -107,7 +108,7 @@ namespace OpenSim.Region.Framework.Scenes.Tests
         }
 
         [Test]
-        public void TestSameSimulatorIsolatedRegions()
+        public void TestSameSimulatorIsolatedRegionsV1()
         {
             TestHelpers.InMethod();
 //            TestHelpers.EnableLogging();
@@ -146,7 +147,8 @@ namespace OpenSim.Region.Framework.Scenes.Tests
             sp.AbsolutePosition = new Vector3(30, 31, 32);
 
             List<TestClient> destinationTestClients = new List<TestClient>();
-            EntityTransferHelpers.SetUpInformClientOfNeighbour((TestClient)sp.ControllingClient, destinationTestClients);
+            EntityTransferHelpers.SetupInformClientOfNeighbourTriggersNeighbourClientCreate(
+                (TestClient)sp.ControllingClient, destinationTestClients);
 
             sceneA.RequestTeleportLocation(
                 sp.ControllingClient,
@@ -179,6 +181,67 @@ namespace OpenSim.Region.Framework.Scenes.Tests
 //            Assert.That(sp.Lookat, Is.EqualTo(teleportLookAt));
         }
 
+        [Test]
+        public void TestSameSimulatorIsolatedRegionsV2()
+        {
+            TestHelpers.InMethod();
+//            TestHelpers.EnableLogging();
+
+            UUID userId = TestHelpers.ParseTail(0x1);
+
+            EntityTransferModule etmA = new EntityTransferModule();
+            EntityTransferModule etmB = new EntityTransferModule();
+            LocalSimulationConnectorModule lscm = new LocalSimulationConnectorModule();
+
+            IConfigSource config = new IniConfigSource();
+            IConfig modulesConfig = config.AddConfig("Modules");
+            modulesConfig.Set("EntityTransferModule", etmA.Name);
+            modulesConfig.Set("SimulationServices", lscm.Name);
+
+            SceneHelpers sh = new SceneHelpers();
+            TestScene sceneA = sh.SetupScene("sceneA", TestHelpers.ParseTail(0x100), 1000, 1000);
+            TestScene sceneB = sh.SetupScene("sceneB", TestHelpers.ParseTail(0x200), 1002, 1000);
+
+            SceneHelpers.SetupSceneModules(sceneA, config, etmA);
+            SceneHelpers.SetupSceneModules(sceneB, config, etmB);
+            SceneHelpers.SetupSceneModules(new Scene[] { sceneA, sceneB }, config, lscm);
+
+            Vector3 teleportPosition = new Vector3(10, 11, 12);
+            Vector3 teleportLookAt = new Vector3(20, 21, 22);
+
+            ScenePresence sp = SceneHelpers.AddScenePresence(sceneA, userId);
+            sp.AbsolutePosition = new Vector3(30, 31, 32);
+
+            List<TestClient> destinationTestClients = new List<TestClient>();
+            EntityTransferHelpers.SetupSendRegionTeleportTriggersDestinationClientCreateAndCompleteMovement(
+                (TestClient)sp.ControllingClient, destinationTestClients);
+
+            sceneA.RequestTeleportLocation(
+                sp.ControllingClient,
+                sceneB.RegionInfo.RegionHandle,
+                teleportPosition,
+                teleportLookAt,
+                (uint)TeleportFlags.ViaLocation);
+
+            Assert.That(sceneA.GetScenePresence(userId), Is.Null);
+
+            ScenePresence sceneBSp = sceneB.GetScenePresence(userId);
+            Assert.That(sceneBSp, Is.Not.Null);
+            Assert.That(sceneBSp.Scene.RegionInfo.RegionName, Is.EqualTo(sceneB.RegionInfo.RegionName));
+            Assert.That(sceneBSp.AbsolutePosition, Is.EqualTo(teleportPosition));
+
+            Assert.That(sceneA.GetRootAgentCount(), Is.EqualTo(0));
+            Assert.That(sceneA.GetChildAgentCount(), Is.EqualTo(0));
+            Assert.That(sceneB.GetRootAgentCount(), Is.EqualTo(1));
+            Assert.That(sceneB.GetChildAgentCount(), Is.EqualTo(0));
+
+            // TODO: Add assertions to check correct circuit details in both scenes.
+
+            // Lookat is sent to the client only - sp.Lookat does not yield the same thing (calculation from camera
+            // position instead).
+//            Assert.That(sp.Lookat, Is.EqualTo(teleportLookAt));
+        }
+
         /// <summary>
         /// Test teleport procedures when the target simulator returns false when queried about access.
         /// </summary>
@@ -428,7 +491,7 @@ namespace OpenSim.Region.Framework.Scenes.Tests
         }
 
         [Test]
-        public void TestSameSimulatorNeighbouringRegions()
+        public void TestSameSimulatorNeighbouringRegionsV1()
         {
             TestHelpers.InMethod();
 //            TestHelpers.EnableLogging();
@@ -466,7 +529,7 @@ namespace OpenSim.Region.Framework.Scenes.Tests
             AgentCircuitData acd = SceneHelpers.GenerateAgentData(userId);
             TestClient tc = new TestClient(acd, sceneA);
             List<TestClient> destinationTestClients = new List<TestClient>();
-            EntityTransferHelpers.SetUpInformClientOfNeighbour(tc, destinationTestClients);
+            EntityTransferHelpers.SetupInformClientOfNeighbourTriggersNeighbourClientCreate(tc, destinationTestClients);
 
             ScenePresence beforeSceneASp = SceneHelpers.AddScenePresence(sceneA, tc, acd);
             beforeSceneASp.AbsolutePosition = new Vector3(30, 31, 32);
@@ -512,5 +575,89 @@ namespace OpenSim.Region.Framework.Scenes.Tests
 
 //            TestHelpers.DisableLogging();
         }
+
+        [Test]
+        public void TestSameSimulatorNeighbouringRegionsV2()
+        {
+            TestHelpers.InMethod();
+//            TestHelpers.EnableLogging();
+
+            UUID userId = TestHelpers.ParseTail(0x1);
+
+            EntityTransferModule etmA = new EntityTransferModule();
+            EntityTransferModule etmB = new EntityTransferModule();
+            LocalSimulationConnectorModule lscm = new LocalSimulationConnectorModule();
+
+            IConfigSource config = new IniConfigSource();
+            IConfig modulesConfig = config.AddConfig("Modules");
+            modulesConfig.Set("EntityTransferModule", etmA.Name);
+            modulesConfig.Set("SimulationServices", lscm.Name);
+
+            SceneHelpers sh = new SceneHelpers();
+            TestScene sceneA = sh.SetupScene("sceneA", TestHelpers.ParseTail(0x100), 1000, 1000);
+            TestScene sceneB = sh.SetupScene("sceneB", TestHelpers.ParseTail(0x200), 1001, 1000);
+
+            SceneHelpers.SetupSceneModules(new Scene[] { sceneA, sceneB }, config, lscm);
+            SceneHelpers.SetupSceneModules(sceneA, config, new CapabilitiesModule(), etmA);
+            SceneHelpers.SetupSceneModules(sceneB, config, new CapabilitiesModule(), etmB);
+
+            Vector3 teleportPosition = new Vector3(10, 11, 12);
+            Vector3 teleportLookAt = new Vector3(20, 21, 22);
+
+            AgentCircuitData acd = SceneHelpers.GenerateAgentData(userId);
+            TestClient tc = new TestClient(acd, sceneA);
+            List<TestClient> destinationTestClients = new List<TestClient>();
+            EntityTransferHelpers.SetupInformClientOfNeighbourTriggersNeighbourClientCreate(tc, destinationTestClients);
+
+            ScenePresence beforeSceneASp = SceneHelpers.AddScenePresence(sceneA, tc, acd);
+            beforeSceneASp.AbsolutePosition = new Vector3(30, 31, 32);
+
+            Assert.That(beforeSceneASp, Is.Not.Null);
+            Assert.That(beforeSceneASp.IsChildAgent, Is.False);
+
+            ScenePresence beforeSceneBSp = sceneB.GetScenePresence(userId);
+            Assert.That(beforeSceneBSp, Is.Not.Null);
+            Assert.That(beforeSceneBSp.IsChildAgent, Is.True);
+
+            // Here, we need to make clientA's receipt of SendRegionTeleport trigger clientB's CompleteMovement().  This
+            // is to operate the teleport V2 mechanism where the EntityTransferModule will first request the client to
+            // CompleteMovement to the region and then call UpdateAgent to the destination region to confirm the receipt
+            // Both these operations will occur on different threads and will wait for each other.
+            // We have to do this via ThreadPool directly since FireAndForget has been switched to sync for the V1
+            // test protocol, where we are trying to avoid unpredictable async operations in regression tests.
+            tc.OnTestClientSendRegionTeleport 
+                += (regionHandle, simAccess, regionExternalEndPoint, locationID, flags, capsURL) 
+                    => ThreadPool.UnsafeQueueUserWorkItem(o => destinationTestClients[0].CompleteMovement(), null);
+
+            sceneA.RequestTeleportLocation(
+                beforeSceneASp.ControllingClient,
+                sceneB.RegionInfo.RegionHandle,
+                teleportPosition,
+                teleportLookAt,
+                (uint)TeleportFlags.ViaLocation);
+
+            ScenePresence afterSceneASp = sceneA.GetScenePresence(userId);
+            Assert.That(afterSceneASp, Is.Not.Null);
+            Assert.That(afterSceneASp.IsChildAgent, Is.True);
+
+            ScenePresence afterSceneBSp = sceneB.GetScenePresence(userId);
+            Assert.That(afterSceneBSp, Is.Not.Null);
+            Assert.That(afterSceneBSp.IsChildAgent, Is.False);
+            Assert.That(afterSceneBSp.Scene.RegionInfo.RegionName, Is.EqualTo(sceneB.RegionInfo.RegionName));
+            Assert.That(afterSceneBSp.AbsolutePosition, Is.EqualTo(teleportPosition));
+
+            Assert.That(sceneA.GetRootAgentCount(), Is.EqualTo(0));
+            Assert.That(sceneA.GetChildAgentCount(), Is.EqualTo(1));
+            Assert.That(sceneB.GetRootAgentCount(), Is.EqualTo(1));
+            Assert.That(sceneB.GetChildAgentCount(), Is.EqualTo(0));
+
+            // TODO: Add assertions to check correct circuit details in both scenes.
+
+            // Lookat is sent to the client only - sp.Lookat does not yield the same thing (calculation from camera
+            // position instead).
+//            Assert.That(sp.Lookat, Is.EqualTo(teleportLookAt));
+
+//            TestHelpers.DisableLogging();
+        }
     }
 }
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